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Iceberg
An iceberg is a large piece of ice that has broken off from a snow-formed glacier or ice shelf and is floating in open water. Since the density of pure water ice is ca. 920 kg/m3, and that of sea water ca. 1025 kg/m3, typically, around 90% of the volume of an iceberg is under water, and that portion's shape can be difficult to surmise from looking at what is visible above the surface. This has led to the expression "tip of the iceberg", generally applied to a problem or difficulty, meaning that the visible trouble is only a small manifestation of a larger problem.
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Earth & Climate News
April 11, 2026
Apr. 11, 2026 Scientists searching for air pollution clues stumbled onto something unexpected: toxic MCCPs drifting through the air for the first time in the Western Hemisphere. The likely source—fertilizer made from sewage sludge—points to a hidden route for ...
Apr. 6, 2026 Oyster reefs aren’t random piles—they’re carefully shaped survival systems. Researchers discovered that certain geometric patterns, not just bigger or more complex structures, give young oysters the best chance to thrive. By mimicking these ...
Apr. 4, 2026 A sweeping new study reveals that as Arctic permafrost thaws, it is dramatically reshaping rivers and releasing vast amounts of ancient carbon that had been locked away for thousands of years. By analyzing decades of high-resolution data across ...
Apr. 4, 2026 Warming across the U.S. is far more uneven than it looks at first glance. While only about half of states show rising average temperatures, most are heating up in specific ways—like hotter highs or warmer lows. These hidden shifts vary by region, ...
Apr. 1, 2026 Old canned salmon turned out to be a time capsule of ocean health. Researchers found that rising levels of tiny parasitic worms in some salmon species suggest stronger, more complete marine food ...
Mar. 29, 2026 Scientists may have been unknowingly inflating microplastics pollution estimates, and the surprising source could be their own lab gloves. A University of Michigan study found that common nitrile and latex gloves release tiny particles called ...
Mar. 29, 2026 Scientists have discovered that the ocean’s “missing” plastic hasn’t vanished—it has broken down into trillions of invisible nanoplastics now spread through water, air, and living ...
Mar. 28, 2026 Scientists have created a new kind of carbon material that could make carbon capture much cheaper and more efficient. By carefully controlling how nitrogen atoms are arranged, they found certain structures capture CO2 better and release it using far ...
Mar. 27, 2026 A massive 7.7 magnitude earthquake struck Myanmar in March 2025, but what makes this event extraordinary is what happened next. For the first time, a nearby CCTV camera captured the fault rupture in ...
Mar. 27, 2026 Stable sea ice along Alaska’s coast is disappearing faster than expected, with the season shrinking by weeks and even months in recent decades. The ice is forming later in the fall and, in some places, breaking away earlier in spring. This trend ...
Mar. 26, 2026 A sweeping global report finds that migratory freshwater fish are in steep decline, with populations down roughly 81% since 1970. These species depend on long, connected rivers, but dams and human pressures are cutting off their routes. Hundreds of ...
Mar. 25, 2026 When temperatures plunge, the risk to your heart rises dramatically. A large U.S. study shows cold weather is linked to far more cardiovascular deaths than heat, accounting for tens of thousands of extra deaths each year. Scientists found the safest ...
Latest Headlines
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Apr. 7, 2026 A colossal ocean current encircling Antarctica—stronger than all the world’s rivers combined—played a far more complex role in shaping Earth’s climate than scientists once thought. New ...
Apr. 6, 2026 A remarkable fossil discovery in southwest China is rewriting the story of how complex animal life began, showing that many key animal groups appeared millions of years earlier than scientists once ...
Apr. 4, 2026 Asteroid impacts may have helped kick-start life on Earth by creating hot, chemical-rich environments ideal for early biology. These impact-generated hydrothermal systems could have lasted thousands ...
Apr. 3, 2026 Saturn’s magnetic field isn’t the smooth, symmetrical shield scientists see around Earth. Instead, it’s noticeably skewed, and researchers now think they understand why. By analyzing years of ...
Apr. 2, 2026 Hundreds of millions of years ago, Earth’s magnetic field behaved in a way that has long baffled scientists, showing wild and seemingly chaotic ...
Mar. 29, 2026 Far beneath the ocean near Japan, scientists have discovered that the magma system linked to the most powerful eruption of the Holocene is slowly rebuilding. By using seismic imaging, researchers ...
Mar. 27, 2026 A fossil ape discovered in northern Egypt is reshaping the story of human evolution. The species, Masripithecus, lived about 17 to 18 million years ago and may sit very close to the ancestor of all ...
Mar. 26, 2026 Deep inside a cave, scientists uncovered fossils from 16 species, including a newfound kākāpō ancestor that may have been able to fly. These remains reveal that New Zealand’s ecosystems were ...
Mar. 23, 2026 People often get the environmental impact of food wrong, according to new research. While many assume processed foods are the worst, they tend to overlook the surprisingly high impact of items like ...
Mar. 23, 2026 Tiny plastic particles aren’t just choking oceans and cities—they’re quietly infiltrating forests too. Scientists discovered that most microplastics arrive through the air, settling onto ...